Introduction 1 Part 1: Getting into the Act: An Overview of ACT Math Basics 5 Chapter 1: Reviewing ACT Math Basics 7 Chapter 2: Boosting Your Test-Taking Skills 19 Chapter 3: Discovering Some Problem-Solving Strategies 27 Part 2: Building Your Pre-Algebra and Elementary Algebra Skills 39 Chapter 4: Starting with the Basics: Pre-Algebra 41 Chapter 5: It's Elementary Algebra, My Dear Watson 57 Chapter 6: Real-World Math: Statistics and Probability 75 Chapter 7: Practice Problems for Pre-Algebra and Elementary Algebra 93 Part 3: Digging In to Intermediate Algebra and Coordinate Geometry 113 Chapter 8: Moving to Intermediate Algebra 115 Chapter 9: Coordinating a Path through Coordinate Geometry 141 Chapter 10: Practice Problems for Intermediate Algebra and Coordinate Geometry 165 Part 4: Visualizing Plane Geometry and Trigonometry 185 Chapter 11: Plain Talk about Plane Geometry 187 Chapter 12: Trig and Beyond: ACT Advanced Math Topics 211 Chapter 13: Practice Problems for Geometry, Trig, and Advanced Math 233 Part 5: Tracking Your Progress with Practice Tests 255 Chapter 14: Practice Test 1 257 Chapter 15: Practice Test 1: Answers and Explanations 271 Chapter 16: Practice Test 2 289 Chapter 17: Practice Test 2: Answers and Explanations 303 Part 6: The Part of Tens 319 Chapter 18: Ten Key Differences Between the ACT and the SAT 321 Chapter 19: Ten Items to Check Off before Taking the ACT 325 Index 329.